Home › Forum › Ask A Member › Johnson HD-20 Won’t start › Re: Johnson HD-20 Won’t start
That’s a great reference, I need to go through it in some more detail. I tried starting the motor with the high speed needle shut and the low speed open 3/4 turn the magneto lever set in the start position. It will start, but it immediately races up to high RPM, even with just the low speed needle. It then settles down, and I can get it to run with the magneto lever somewhat below the start position and the low speed needle opened to about 1 full turn.
I need to play with it more, but it’s doing the same thing I saw this weekend where it would race up to high speed right after starting and it doesn’t immediately respond to adjusting the lever down.
Not sure if I mentioned it in the beginning, but I’m running J6C spark plugs in it gapped to 30 mil.